Support options being used multiple times about guaka HOT 2 CLOSED

I've forked this and begun trying to implement it myself and it is a bit more complex than I'd hoped because of the current design. I'll see if I can't figure it out without changing too much, but we'll see how plausible this really is.

I could easily make Array conform to FlagValue and just split results on a comma or some designated separator, but then you could run into issues where your whole input string and its individual values may both contain the separator character and you've got to figure out how to distinguish between them. So I'd rather have the more familiar usage of just specify an argument multiple times to avoid this kind of complexity.

from guaka.

@Ponyboy47 Thanks for trying this. I agree that options should be able to be used multiple times, as it follows the POSIX guidelines. Awaiting your PR.

from guaka.